The Geauga County Laboratory is a division within the Water Resources Department. We are a multifaceted lab with capabilities that range in both water and wastewater analysis. Each of our analysts hold water  and wastewater certifications through the State of Ohio. Semi annually we participate in Federal and State proficiency testing and have random and scheduled surveys through the EPA and the Health Department.
Lab Microbiology Certificate #268 Lab Chemistry Certificate #1073

Water Tests

Our most requested test for drinking water is the Total Coliform Bacteria, also known as the water potability test. This test determines the presence or absence of bacteria. In the event that total coliform is present in your private well water then a well chlorination should be performed at your earliest opportunity. Water tests are only accepted back certain days; call the office or the lab to find out when to drop off your water sample. In order to take these tests a pre-sterilized bottle must be purchased before water is drawn.
Complete List of Tests & Fees Total Coliform Bacteria Sanitizing Instructions Fecal Coliform Collection Instructions Well Chlorination Instructions Certified Labs
Director: Steven Oluic, PhD This department reports to the County Commissioners James W. Dvorak, Timothy C. Lennon, Ralph Spidalieri
Home Emergencies Projects Sewer Water Lab Billing Forms Staff Links Weather Lab
To print out the sampling instructions for the Total Coliform Bacteria test and for the Fecal Coliform test click below.
To print out the instructions on how to chlorinate your private well click below.


Hours: Monday - Friday 7:00am - 4:00pm Phone: (440) 285-2603 Fax: (440) 285-2864


   Certified Labs

To see other certified labs around the area,

click below.
Phone: 440-279-1970 Fax: 440-285-9549

Sample Procedures   Effective 8-24-2020

Sample bottles may be purchased at the GCDWR Office Customer

Service Counter Window daily from 8pm to 4pm or by contacting the office

at or calling 440-279-1970

Samples may be dropped of at the office or the GCDWR Laboratory - 13335 Aquilla Road, located just south of Ravenwood Drive on the east side, there is a location sign posted at the road.  It is a long driveway Water Sample drop-off times are M, T & W from 8am to 4pm. No exceptions Waste Water Sample drop-off times are T & Th only from 8am to 11am. No exceptions For Laboratory drop offs, please use side door marked entrance and place sample bottle in large Brown refrigerator. Please make sure all paperwork is completed and rubber banded to the bottle. If you have any questions while at this location, please call 440-279-1975
Updated 5-10-2022